<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Validate TagBox - jQuery EasyUI Demo</title>
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</head>
<body>
<h2>Validate TagBox</h2>
<p>This example shows how to validate the tagbox values.</p>
<div style="margin:20px 0;"></div>
<div class="easyui-panel" style="width:100%;max-width:400px;padding:30px 60px;">
    <input class="easyui-tagbox" value="Apple,Orange" label="Add a tag" style="width:100%" data-options="
				validType: ['length[3,10]','uniquetag']
				">
</div>
<script type="text/javascript">
    $.extend($.fn.validatebox.defaults.rules, {
        uniquetag: {
            validator: function (value, param) {
                var tb = $(this).closest('.tagbox').prev();
                var values = tb.tagbox('getValues');
                return $.inArray(value, values) == -1;
            },
            message: 'The tag value already exists.'
        }
    })
</script>
</body>
</html>